Portion of a shoe sole



FIG. 1 is a top perspective view of a portion of a shoe sole showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a top perspective view of another embodiment of a portion of a shoe sole showing our new design;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a side view thereof;

FIG. 12 is another side view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom view thereof.

The broken lines and areas within them depict portions of the shoe sole that form no part of the claimed design. 

The ornamental design for a portion of a shoe sole, as shown and described. 